www.AerationSystems.net
A Primer on Aeration Systems | Fundamentals & Applications
Introduction
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www.AerationSystems.net
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A Primer on Aeration Systems | Fundamentals & Applications |
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Introduction |
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Aeration systems such as those
employed in aerobic treatment, e.g. activated
sludge and aerated lagoon applications are by far the greatest application
of aeration equipment. Aeration is also used in water treatment
operations for chemical oxidation of inorganic constituents such as iron,
manganese and hydrogen sulfide. It is also used for odor control
and/or oxygen content restoration.
Most aeration systems are suitable for activated sludge applications, but each has its own best applications. For example, brush aerators are best for oxidation ditches while fixed diffusers and surface aerators are best for conventional AS systems. The key is to size the unit properly for each application. Once OTR characteristics are established, the sizing is fairly straightforward. Other factors include alpha factor, impact of floc size and settleability, impact on effluent TSS, etc. The key phrase is "if properly sized/selected." Broadly speaking, aeration systems are popularly classified as either surface aeration systems or submerged type aeration systems.Typical examples of surface aeration systems include most frequently floating or pier-anchored mechanical type units, such as direct-drive, high speed units or gear driven, low speed units. Flow can be either upflow or downflow and either axial or radial/centrifugal. Surface aerators are typically employed in the relatively shallower ponds, basins or tanks. The most popular submerged type aeration systems include diffused aeration systems and submerged, turbine-type aeration and mixing aerator configurations.
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www.AerationFundamentals.com - www.ExtendedAeration.com - www.OxidationDitches.com - www.TricklingFilters.com |
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www.Biotowers.com - www.MembraneBioreactors.com - www.AnaerobicReactors.com - www.AnaerobicFilters.com |
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www.UASBs.com - www.EGSBs.com - www.CoolingTowerFundamentals.com - www.EvaporativeCondensers.com |
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www.DewateringFundamentals.com - www.BioremediationFundamentals.com - www.IncinerationFundamentals.com |
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Questions?? Send
us e-mail: 
frontdesk@engineer.com |
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p.d.: Lab flask images courtesy of www.EnviTreat.com
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